Agilent Technologies N3280A manual Operation Status Group, Bit Configurations of Status Registers

5 - Programming the DC Source

Table 5-1. Bit Configurations of Status Registers

Bit	Signal	Meaning
		Operation Status Group
0	CV	The selected output is in constant voltage mode (applies only in voltage priority mode)
1	CL+	The selected output is in positive current limit	(applies only in voltage priority mode)
2	CL-	The selected output is in negative current limit	(applies only in voltage priority mode)
3	CC	The selected output is in constant current mode (applies only in current priority mode)
4	VL+	The selected output is in positive voltage limit	(applies only in current priority mode)
5	VL-	The selected output is in negative voltage limit	(applies only in current priority mode)
6	OFF	The selected output is OFF
		Questionable Status Group
0	OV+	The positive overvoltage protection has tripped
1	OV-	The negative overvoltage protection has tripped
2	PCLR	No communication with the selected output
4	OT	The overtemperature protection has tripped
10	UNR	The output is unregulated
12	OSC	The oscillation protection has tripped
14	MeasOvld	Output measurement exceeded capability of the range
		Standard Event Status Group
0	OPC	Operation complete
2	QYE	Query error
3	DDE	Device-dependent error
4	EXE	Execution error
5	CME	Command error
7	PON	Power-on
		Status Byte and Service Request Enable Registers
2	WTG	The unit is waiting for a trigger
3	QUES	Questionable status summary bit
4	MAV	Message Available summary bit
5	ESB	Event Status Summary bit
6	MSS	Master Status Summary bit
	RQS	Request Service bit
7	OPER	Operation status summary bit

Operation Status Group

The Operation Status registers record signals that occur during normal operation. As shown below, the group consists of a Condition, PTR/NTR, Event, and Enable register. The outputs of the Operation Status register group are logically-ORed into the OPERation summary bit (7) of the Status Byte register.

Register	Command	Description
Condition	STAT:OPER:COND? (@<channel list>)	A register that holds real-time status of the circuits
		being monitored. It is a read-only register.
PTR Filter	STAT:OPER:PTR <n> (@<channel list>)	A positive transition filter that functions as described
		under STAT:OPER:NTRPTR commands in chapter 6.
		It is a read/write register.
NTR Filter	STAT:OPER:NTR <n> (@<channel list>)	A negative transition filter that functions as described
		under STAT:OPER:NTRPTR commands in chapter 6.
		It is a read/write register.
Event	STAT:OPER:EVEN? (@<channel list>)	A register that latches any condition that is passed
		through the PTR or NTR filters. It is a read-only
		register that is cleared when read.
Enable	STAT:OPER:ENAB <n> (@<channel list>)	A register that functions as a mask for enabling specific
		bits from the Event register. It is a read/write register.

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